Bieber (7-3) gave up one run and five hits in six innings, striking out five. The reigning AL Cy Young Award winner has won his past three decisions.
Carlos Martínez (3-6) allowed five runs and seven hits, including Ramírez’s three-run homer, in four innings.
C Yadier Molina (left knee) came to Busch Stadium on Tuesday and could return as early as Wednesday, though with an off day Thursday he might be given an extra day of rest and return Friday.
Cardinals RHP Adam Wainwright (3-5, 4.19) looks to bounce back tonight, 6:20 with the pregame and the first pitch at 7:15 on KIRX.
First place Milwaukee leads the second place Cubs by a half a game. third place Cardinals are now 3 and a half out. Fourth place Reds are 5 games behind.